Physics – Condensed Matter – Statistical Mechanics
Scientific paper
2004-12-16
Journal of Statistical Mechanics: Theory and Experiment (09) P09008 (2004)
Physics
Condensed Matter
Statistical Mechanics
23 pages, 1 figure
Scientific paper
10.1088/1742-5468/2004/09/P09008
We derive the multiparticle-correlation expansion of the excess entropy of classical particles in the canonical ensemble using a new approach that elucidates the rationale behind each term in the expansion. This formula provides the theoretical framework for an entropy-based ordering criterion that has been already tested for a variety of model fluids and thermodynamic phenomena. In view of future investigations of the phase diagram of colloidal mixtures, we detail in this paper the case of a two-component system of spherical and rod-like particles and discuss the symmetries underlying both the self and distinct pair-distribution functions under various geometrical constraints.
Giaquinta Paolo V.
Prestipino Santi
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